Home / 215,145.05-322,715.48-130,929.14

Finding the Fourth Proportional to 215,145.05, 322,715.48 and 130,929.14

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Solution

The fourth proportional to 215,145.05, 322,715.48 and 130,929.14 is: 196,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,145.05 : 322,715.48 = 130,929.14 : x
  2. Step 2: Convert to fraction form
    215,145.05/322,715.48 = 130,929.14/x
  3. Step 3: Cross multiply
    215,145.05x = 322,715.48 × 130,929.14
  4. Step 4: Simplify right side
    215,145.05x = 42,252,860,413.23
  5. Step 5: Solve for x
    x = 42,252,860,413.23/215,145.05
  6. Step 6: Final answer
    x = 196,392.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.